Skip to main content

Table 1 Clinical data in two patient groups

From: Strain-time curve analysis by speckle tracking echocardiography in cardiac resynchronization therapy: Insight into the pathophysiology of responders vs. non-responders

 

Responders

Non-responders

P value

n

10

9

 

Age (years)

57 ± 11

60 ± 6

0.496

Female Gender, n (%)

5 (50 %)

4 (44 %)

0.809

Weight (kg)

87 ± 18

91 ± 19

0.669

BSA (m2)

2.0 ± 0.3

2.1 ± 0.3

0.632

LBBB, n (%)

10 (100 %)

9 (100 %)

NA

Non-ischemic etiology, n (%)

10 (100 %)

9 (100 %)

NA

Sinus rhythm, n (%)

10 (100 %)

9 (100 %)

NA

CRT-D, n (%)

10 (100 %)

9 (100 %)

NA

Follow up from implant (months)

8.5 ± 4.8

9.0 ± 5.2

0.832

NYHA III/IV – pre, n (%)

8 (80 %)

9 (100 %)

0.776

NYHA III/IV – post, n (%)

2 (20 %)

5 (55 %)

0.109

QRS width (ms) – pre

167 ± 18

169 ± 22

0.789

QRS width (ms) – post

153 ± 18

157 ± 26

0.771

  1. Values are mean ± SD or n (%). BSA body surface area, LBBB left bundle branch block, CRT-D cardiac resynchronization therapy defibrillator, NYHA New York Heart Association